The lovely girl is from Class 6.name is Alice.

There’s somebody at the door. Who ____ it be? Is it the postman? — No. It ______ be him. It’s just seven o’clock. It’s too early.

Do you mind my taking this seat?—_______________.

Jack, could you help me when the plane will take off on the Internet?-I’m sorry , ,my computer doesn’t work..

Lily is upset now. Let’s cheer her _____.[ ]